EP 0758000 B1 20011219 - Polyimide films from pyromellitic dianhydride and 2,2'-bis(perfluoroalkoxy)benzidines as alignment layers for liquid crystal displays
Title (en)
Polyimide films from pyromellitic dianhydride and 2,2'-bis(perfluoroalkoxy)benzidines as alignment layers for liquid crystal displays
Title (de)
Polyimidfilme aus Pyromellitsäureanhydrid und 2,2'-Bis(perfluoroalkoxy)benzidine als Orientierungschicht für Flüssigkristallanzeigevorrichtungen
Title (fr)
Films de polyimide à partir de dianhydride pyromellitique et de 2,2'-bis(perfluoroalkoxy)benzidines pour couches d'alignement d'affichage à cristaux liquides
Publication
Application
Priority
US 51260795 A 19950808
Abstract (en)
[origin: EP0758000A2] A polyimide alignment film based on pyromellitic dianhydride and a 2,2'-bis(perfluoroalkoxy)benzidine, as major components, for use in liquid crystal display devices.
IPC 1-7
IPC 8 full level
C08G 73/10 (2006.01); G02F 1/1337 (2006.01)
CPC (source: EP KR US)
C08G 73/1039 (2013.01 - EP US); C08J 5/18 (2013.01 - KR); G02F 1/133723 (2013.01 - EP US); C09K 2323/0271 (2020.08 - EP US); Y10T 428/31721 (2015.04 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0758000 A2 19970212; EP 0758000 A3 19970219; EP 0758000 B1 20011219; DE 69618104 D1 20020131; DE 69618104 T2 20020718; JP H09120071 A 19970506; KR 970010839 A 19970327; US 5670609 A 19970923
DOCDB simple family (application)
EP 96109910 A 19960620; DE 69618104 T 19960620; JP 21032996 A 19960808; KR 19960032845 A 19960807; US 51260795 A 19950808